Encapsulation efficiency and thermal stability of lemongrass (Cymbopogon citratus) essential oil microencapsulated by the spray-drying process


Citation

Nguyen P. T. N., . and Vo T. T., . and Tran T. Y. N., . and Le T. H. N., . and Mai H. C., . and Tran T. T., . and Long G. B., . Encapsulation efficiency and thermal stability of lemongrass (Cymbopogon citratus) essential oil microencapsulated by the spray-drying process. pp. 195-202. ISSN 2550-2166

Abstract

Encapsulation is a potential technique that is widely studied and applied in the preservation of biological compounds and living cells. Lemongrass (Cymbopogon citratus) essential oil is a biological compound that emits a strong aroma and contains robust antibacterial compounds hence its applications in various areas such as food pharmaceuticals and cosmetics. However lemongrass essential oil is in a liquid form so it is easy to evaporate and oxidize when being exposed to temperature variations oxygen and light. Hence the present study was aimed to determine the effects of heating temperature and time on the stability of microencapsulated lemongrass essential oil powder. In this research microencapsulated powder was produced by the spray-drying method using maltodextrin (30 w/w) as the wall material and lemongrass (1.5 w/w) as the core material. Thereafter the effects of heat during processing including temperature (60C to 180C) and treatment time (from 20 to 80 mins) were evaluated. The results showed that when the temperature and the time increased the color of powder became darker and OR values were rapidly reduced. The selected optimal temperature and time was 100C and 20 mins. The encapsulated essential oil maintained its main components including nerol citral a citral b and geraniol even after being heated.


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Abstract

Encapsulation is a potential technique that is widely studied and applied in the preservation of biological compounds and living cells. Lemongrass (Cymbopogon citratus) essential oil is a biological compound that emits a strong aroma and contains robust antibacterial compounds hence its applications in various areas such as food pharmaceuticals and cosmetics. However lemongrass essential oil is in a liquid form so it is easy to evaporate and oxidize when being exposed to temperature variations oxygen and light. Hence the present study was aimed to determine the effects of heating temperature and time on the stability of microencapsulated lemongrass essential oil powder. In this research microencapsulated powder was produced by the spray-drying method using maltodextrin (30 w/w) as the wall material and lemongrass (1.5 w/w) as the core material. Thereafter the effects of heat during processing including temperature (60C to 180C) and treatment time (from 20 to 80 mins) were evaluated. The results showed that when the temperature and the time increased the color of powder became darker and OR values were rapidly reduced. The selected optimal temperature and time was 100C and 20 mins. The encapsulated essential oil maintained its main components including nerol citral a citral b and geraniol even after being heated.

Additional Metadata

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Item Type: Article
AGROVOC Term: Cymbopogon citratus
AGROVOC Term: Lemon grass
AGROVOC Term: Encapsulation
AGROVOC Term: Sampling
AGROVOC Term: Statistical analysis
AGROVOC Term: High temperature
AGROVOC Term: Thermal treatment
AGROVOC Term: Distillation
AGROVOC Term: Microencapsulation
AGROVOC Term: Essential oils
Depositing User: Mr. AFANDI ABDUL MALEK
Last Modified: 24 Apr 2025 00:55
URI: http://webagris.upm.edu.my/id/eprint/10179

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